United States
UV Index in Missouri — Current UV Levels
Check the current UV index for 2 cities in Missouri. Select a city below for real-time UV data, hourly forecasts, and sun protection advice.
UV Index by City in Missouri
Sun Safety in Missouri
UV levels in Missouri vary by season, altitude, and proximity to water. The WHO recommends sun protection whenever UV reaches 3 or higher. Apply SPF 30+ before outdoor activities and reapply every 2 hours.
UV Index in Missouri: What to Know
Missouri has high summer UV across the state, peaking in the long sunny days of June and July.
Across Missouri, the UV index peaks in the four hours around solar noon (roughly noon to 3 PM local time). The World Health Organization recommends sun protection whenever the UV index reaches 3 or higher: apply broad-spectrum SPF 30 at UV 3–5, SPF 50 at UV 6–7, and SPF 50+ with reapplication every two hours at UV 8 and above. Check the live, hour-by-hour UV index for Springfield and St. Louis on the city pages above before heading outdoors.
Common Questions About UV in Missouri
When is the UV index highest in Missouri?
UV in Missouri is strongest between noon and 3 PM local time, and highest in the summer months when the sun sits highest in the sky. Check the hourly chart for Springfield above to see today's exact peak.
Do I need sunscreen in Missouri?
Yes — whenever the UV index reaches 3 or higher, which in Missouri covers most of the daytime hours from spring through fall. Even on cloudy days, up to 80% of UV can reach the ground.
How accurate is this UV data for Missouri?
Our UV index for Missouri comes from Open-Meteo, which aggregates national weather-service models, and updates every 15 minutes. Levels follow the official WHO global solar UV index scale.